diff --git a/core/lib/Drupal/Core/Extension/module.api.php b/core/lib/Drupal/Core/Extension/module.api.php
index 2cfbd80..1b62360 100644
--- a/core/lib/Drupal/Core/Extension/module.api.php
+++ b/core/lib/Drupal/Core/Extension/module.api.php
@@ -697,7 +697,7 @@ function hook_post_update_NAME(&$sandbox) {
   $node->setTitle('foo');
   $node->save();
 
-  return t('Node 123 saved');
+  return t('Node %nid saved', ['%nid' => $node->id()]);
 }
 
 /**
diff --git a/core/lib/Drupal/Core/Update/UpdateRegistry.php b/core/lib/Drupal/Core/Update/UpdateRegistry.php
index dc0bc3f..8d7be81 100644
--- a/core/lib/Drupal/Core/Update/UpdateRegistry.php
+++ b/core/lib/Drupal/Core/Update/UpdateRegistry.php
@@ -88,7 +88,7 @@ protected function getAvailableUpdateFunctions() {
    *
    * @return callable[]
    */
-  public function getMissingUpdateFunctions() {
+  public function getPendingUpdateFunctions() {
     // We need a) the list of active modules (we get that from the config
     // bootstrap factory) and b) the path to the modules, we use the extension
     // discovery for that.
@@ -155,8 +155,8 @@ protected function loadUpdateFile(Extension $module) {
    *       the description from source code comment for each update function.
    *       This array is keyed by the update name.
    */
-  public function getMissingUpdateList() {
-    $functions = $this->getMissingUpdateFunctions();
+  public function getPendingUpdateInformation() {
+    $functions = $this->getPendingUpdateFunctions();
 
     $ret = [];
     foreach ($functions as $function) {
diff --git a/core/modules/system/src/Controller/DbUpdateController.php b/core/modules/system/src/Controller/DbUpdateController.php
index c5fe862..0378f95 100644
--- a/core/modules/system/src/Controller/DbUpdateController.php
+++ b/core/modules/system/src/Controller/DbUpdateController.php
@@ -267,7 +267,7 @@ protected function selection(Request $request) {
           break;
         case 'post_update':
           $after_update_registry = $this->getPostUpdateRegistry();
-          $updates = $after_update_registry->getMissingUpdateList();
+          $updates = $after_update_registry->getPendingUpdateInformation();
           break;
       }
       foreach ($updates as $module => $update) {
@@ -589,8 +589,8 @@ protected function triggerBatch(Request $request) {
       }
     }
 
-    $after_update_registry = $this->getPostUpdateRegistry();
-    $post_updates = $after_update_registry->getMissingUpdateFunctions();
+    $post_update_registry = $this->getPostUpdateRegistry();
+    $post_updates = $post_update_registry->getPendingUpdateFunctions();
 
     if ($post_updates) {
       // Now we rebuild all caches and after that execute the hook_post_update()
diff --git a/core/tests/Drupal/Tests/Core/Update/UpdateRegistryTest.php b/core/tests/Drupal/Tests/Core/Update/UpdateRegistryTest.php
index 6be96e1..3877073 100644
--- a/core/tests/Drupal/Tests/Core/Update/UpdateRegistryTest.php
+++ b/core/tests/Drupal/Tests/Core/Update/UpdateRegistryTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Tests\Core\Update;
 
-use Drupal\Component\Utility\NestedArray;
 use Drupal\Core\KeyValueStore\KeyValueStoreInterface;
 use Drupal\Core\Site\Settings;
 use Drupal\Core\Update\UpdateRegistry;
@@ -95,9 +94,9 @@ function module_b_post_update_a() {
   }
 
   /**
-   * @covers ::getMissingUpdateFunctions
+   * @covers ::getPendingUpdateFunctions
    */
-  public function testGetMissingUpdateFunctionsWithNoExistingUpdates() {
+  public function testGetPendingUpdateFunctionsNoExistingUpdates() {
     $this->setupBasicModules();
 
     $key_value = $this->prophesize(KeyValueStoreInterface::class);
@@ -113,13 +112,13 @@ public function testGetMissingUpdateFunctionsWithNoExistingUpdates() {
       'module_a_post_update_a',
       'module_a_post_update_b',
       'module_b_post_update_a'
-    ], $update_registry->getMissingUpdateFunctions());
+    ], $update_registry->getPendingUpdateFunctions());
   }
 
   /**
-   * @covers ::getMissingUpdateFunctions
+   * @covers ::getPendingUpdateFunctions
    */
-  public function testGetMissingUpdateFunctionsWithExistingUpdates() {
+  public function testGetPendingUpdateFunctionsExistingUpdates() {
     $this->setupBasicModules();
 
     $key_value = $this->prophesize(KeyValueStoreInterface::class);
@@ -134,14 +133,14 @@ public function testGetMissingUpdateFunctionsWithExistingUpdates() {
     $this->assertEquals(array_values([
       'module_a_post_update_b',
       'module_b_post_update_a'
-    ]), array_values($update_registry->getMissingUpdateFunctions()));
+    ]), array_values($update_registry->getPendingUpdateFunctions()));
 
   }
 
   /**
-   * @covers ::getMissingUpdateList
+   * @covers ::getPendingUpdateInformation
    */
-  public function testGetMissingUpdateList() {
+  public function testGetPendingUpdateInformation() {
     $this->setupBasicModules();
 
     $key_value = $this->prophesize(KeyValueStoreInterface::class);
@@ -160,13 +159,13 @@ public function testGetMissingUpdateList() {
     $expected['module_b']['pending']['a'] = 'Module B update A.';
     $expected['module_b']['start'] = 'a';
 
-    $this->assertEquals($expected, $update_registry->getMissingUpdateList());
+    $this->assertEquals($expected, $update_registry->getPendingUpdateInformation());
   }
 
   /**
-   * @covers ::getMissingUpdateList
+   * @covers ::getPendingUpdateInformation
    */
-  public function testGetMissingUpdateListWithExistingUpdates() {
+  public function testGetPendingUpdateInformationWithExistingUpdates() {
     $this->setupBasicModules();
 
     $key_value = $this->prophesize(KeyValueStoreInterface::class);
@@ -184,7 +183,7 @@ public function testGetMissingUpdateListWithExistingUpdates() {
     $expected['module_b']['pending']['a'] = 'Module B update A.';
     $expected['module_b']['start'] = 'a';
 
-    $this->assertEquals($expected, $update_registry->getMissingUpdateList());
+    $this->assertEquals($expected, $update_registry->getPendingUpdateInformation());
   }
 
 }